@article {502,
	title = {Experimental and calculated molecular structures and high symmetry conformations of [Sb2F11](-) (D-4h) and 1,4-C4H4N2 center dot 2SbF(5) (D-2h)},
	journal = {Solid State Sciences},
	volume = {4},
	number = {11-12},
	year = {2002},
	note = {ISI Document Delivery No.: 634TJTimes Cited: 8Cited Reference Count: 52},
	month = {Nov-Dec},
	pages = {1457-1463},
	type = {Article},
	abstract = {Antimony(V) fluoride, SbF5, forms a molecular adduct with pyrazine (1,4-diazine) of the composition 1,4-C4H4N2.2SbF5. Its molecular structure is obtained by single crystal X-ray diffraction. Crystal data of pyrazine.2SbF(5): orthorhombic, spacegroup Pbca ($\#$ 61); a = 8.8052(8) Angstrom; b = 9.948(1) Angstrom; c = 12.297(2) Angstrom; V = 1077.1(2) Angstrom(3); Z = 4; T = 173(1) K; R-1(I > 3sigma (I)) = 0.031; wR(2) = 0.083. The Sb-F-4(eq) planes are eclipsed and the planar C4H4N2 ring is at a 45degrees angle to give D-2h symmetry for pyrazine.2SbF(5). A very similar high symmetry conformation of pointgroup D-4h is found for the [Sb2F11](-) anion in the metal carbonyl salts [Rh(CO)(4)][Sb2F11], [Au(CO)(2)][Sb2F11] and in [H3F2][Sb2F11]. Structural data for pyrazine.2SbF(5) and [Sb2F11](-) from [H3F2][Sb2F11], as well as vibrational data for [Sb2F11](-) (D-4h) are compared to calculated (DFT-B3LYP) data. According to the DFT calculations, the conformation for the[Sb2F11](-) anion (D-4h) and pyrazine.2SbF(5) (D-2h) are both eclipsed with respect to the SbF5-groups and eclipsed with respect to the pyrazine plane in pyrazine.2SbF(5) in their respective ground states. (C) 2002 Editions scientifiques et medicales Elsevier SAS. All rights reserved.},
	keywords = {ADDUCTS, antimony(V) fluoride, CATIONS, CRYSTAL, F-19, fluoroantimonate anion, HEXACARBONYLS, high symmetry conformation, Lewis acid-base adducts, N-donor complex of antimony(V) fluoride, superacid anion, UNDECAFLUORODIANTIMONATE(V), VIBRATIONAL-SPECTRA},
	isbn = {1293-2558},
	url = {<Go to ISI>://000180356800016},
	author = {Sham, I. H. T. and Patrick, B. O. and von Ahsen, B. and von Ahsen, S. and Willner, H. and Thompson, R. C. and Aubke, F.}
}
@article {502,
	title = {Experimental and calculated molecular structures and high symmetry conformations of [Sb2F11](-) (D-4h) and 1,4-C4H4N2 center dot 2SbF(5) (D-2h)},
	journal = {Solid State Sciences},
	volume = {4},
	number = {11-12},
	year = {2002},
	note = {ISI Document Delivery No.: 634TJTimes Cited: 8Cited Reference Count: 52},
	month = {Nov-Dec},
	pages = {1457-1463},
	type = {Article},
	abstract = {Antimony(V) fluoride, SbF5, forms a molecular adduct with pyrazine (1,4-diazine) of the composition 1,4-C4H4N2.2SbF5. Its molecular structure is obtained by single crystal X-ray diffraction. Crystal data of pyrazine.2SbF(5): orthorhombic, spacegroup Pbca ($\#$ 61); a = 8.8052(8) Angstrom; b = 9.948(1) Angstrom; c = 12.297(2) Angstrom; V = 1077.1(2) Angstrom(3); Z = 4; T = 173(1) K; R-1(I > 3sigma (I)) = 0.031; wR(2) = 0.083. The Sb-F-4(eq) planes are eclipsed and the planar C4H4N2 ring is at a 45degrees angle to give D-2h symmetry for pyrazine.2SbF(5). A very similar high symmetry conformation of pointgroup D-4h is found for the [Sb2F11](-) anion in the metal carbonyl salts [Rh(CO)(4)][Sb2F11], [Au(CO)(2)][Sb2F11] and in [H3F2][Sb2F11]. Structural data for pyrazine.2SbF(5) and [Sb2F11](-) from [H3F2][Sb2F11], as well as vibrational data for [Sb2F11](-) (D-4h) are compared to calculated (DFT-B3LYP) data. According to the DFT calculations, the conformation for the[Sb2F11](-) anion (D-4h) and pyrazine.2SbF(5) (D-2h) are both eclipsed with respect to the SbF5-groups and eclipsed with respect to the pyrazine plane in pyrazine.2SbF(5) in their respective ground states. (C) 2002 Editions scientifiques et medicales Elsevier SAS. All rights reserved.},
	keywords = {ADDUCTS, antimony(V) fluoride, CATIONS, CRYSTAL, F-19, fluoroantimonate anion, HEXACARBONYLS, high symmetry conformation, Lewis acid-base adducts, N-donor complex of antimony(V) fluoride, superacid anion, UNDECAFLUORODIANTIMONATE(V), VIBRATIONAL-SPECTRA},
	isbn = {1293-2558},
	url = {<Go to ISI>://000180356800016},
	author = {Sham, I. H. T. and Patrick, B. O. and von Ahsen, B. and von Ahsen, S. and Willner, H. and Thompson, R. C. and Aubke, F.}
}
@article {4582,
	title = {Synthesis of new hypoxia markers EF1 and [F-18]-EF1},
	journal = {Applied Radiation and Isotopes},
	volume = {51},
	number = {6},
	year = {1999},
	note = {ISI Document Delivery No.: 242RBTimes Cited: 23Cited Reference Count: 33},
	month = {Dec},
	pages = {643-650},
	type = {Article},
	abstract = {We report on the preparation of a hypoxia marker 2-(2-nitroimidazol-1[H]-yl)-N-(3-fluoropropyl)acetamide (EF1) and its F-18 analog, 2-(2-nitroimidazol-1[H]-yl)-N-(3-[F-18]fluoropropyl)acetamide ([F-18]-EF1). Two methods for the preparation of 3-fluoropropylamine, the EF1 side chain, are described. [F-18]-EF1 was prepared with a radiochemical yield of 2\% by nucleophilic substitution of bromine in 2-(2-nitroimidazol-1[H]-yl)-N-(3-bromopropyl) acetamide (EBrl) by carrier-added F-18 in DMSO at 120 degrees C. Our results demonstrate the preparation of clinically relevant amounts of [F-18]-EF1 for use as a non-invasive hypoxia marker with detection using positron emission tomography (PET). (C) 1999 Elsevier Science Ltd. All rights reserved.},
	keywords = {ADDUCTS, CARCINOMA, CELLS, DEPENDENCE, F-18 FLUOROMISONIDAZOLE, IMAGING TUMOR HYPOXIA, INVIVO, ischemia, NONINVASIVE ASSESSMENT, REDUCTION},
	isbn = {0969-8043},
	url = {<Go to ISI>://000082954500006},
	author = {Kachur, A. V. and Dolbier, W. R. and Evans, S. M. and Shiue, C. Y. and Shiue, G. G. and Skov, K. A. and Baird, I. R. and James, Brian R. and Li, A. R. and Roche, A. and Koch, C. J.}
}
@article {4143,
	title = {Thermal alkane C-H bond activation by a tungsten alkylidene complex: The reversal of alpha-hydrogen elimination},
	journal = {Journal of the American Chemical Society},
	volume = {119},
	number = {21},
	year = {1997},
	note = {ISI Document Delivery No.: XB674Times Cited: 52Cited Reference Count: 36},
	month = {May},
	pages = {5071-5072},
	type = {Article},
	keywords = {ABSTRACTION, ADDUCTS, ARYL, BINDING, CHEMISTRY, DERIVATIVES, LIGANDS, METAL-COMPLEXES, REACTIVITY, tantalum},
	isbn = {0002-7863},
	url = {<Go to ISI>://A1997XB67400046},
	author = {Tran, E. and Legzdins,Peter}
}
